import java.util.Scanner;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: a1227
 * Date: 2022-09-04
 * Time: 22:56
 */
public class Text {
    /**
     * 牛牛的短信
     * @param args
     */
    /*
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int n = scan.nextInt();
        int[] ary = new int[n];
        float telMoney = 0.0f;
        for(int i = 0; i < ary.length; i++){
            ary[i] = scan.nextInt();
            if(ary[i] <= 60){
                telMoney += 0.1;
            }else{
                telMoney += 0.2;
            }
        }
        System.out.println(telMoney);
    }
    */

    /**
     * 牛牛的素数和
     * @param args
     */
    /*
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int l = scan.nextInt();
        int r = scan.nextInt();
        int sum = 0;
        int i = 0;
        for(i = l; i <= r; i++){
            if(i == 1){
                continue;
            }
            int j = 0;
            for(j = 2; j <= r - 1; j++){
                if(i % j == 0){
                    break;
                }
            }
            if(j == i){
                sum += i;
            }
        }
        System.out.println(sum);
    }
    */
}
